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Windows 7: Thought BSODs had been done in, but NO!

28 Feb 2013   #11
Dsprague

Microsoft Community Contributor Award Recipient

Windows 7 enterprise 64 bit, Windows 7 Pro 64 bit ,Windows 8 64bit
 
 

Its not a matter of which ones, its a matter of if it is on or if it is off it applies to any usb port on your pc. A hub is typically a device used to expand a single usb port into many usb ports like this: Rosewill RHB-320 Hub - Newegg.com
A usb port is just a single port one usb connection


My System SpecsSystem Spec
.
11 Mar 2013   #12
rundwald

Home Premium 64 bit
 
 

Since last writing I follwed suggestion re the USB ports ans all seemed well, until theis weekend, when the BSODs occured again. They seem to concern
ntoskrnl.exe (nt+0x75C40) and ntkrnlmp.exe (nt!KeBugCheckEx+0x0). What the bits in brackets mean I have no idea!

I attach the SF zip and some other items in case they may be of use.

I hope you will be willing and able tohelp me again! The chameleon like BSODs are maddening.
My System SpecsSystem Spec
11 Mar 2013   #13
rundwald

Home Premium 64 bit
 
 

Delayed post now done, except that I have a full dump that I uploaded to two hosting sites, and neither sharing link is accepted by this forum's manage attachments facility. Hopefully http://www.**************/?kf1o5zkwr67s9cu will work
My System SpecsSystem Spec
.

11 Mar 2013   #14
Dsprague

Microsoft Community Contributor Award Recipient

Windows 7 enterprise 64 bit, Windows 7 Pro 64 bit ,Windows 8 64bit
 
 

OK Had a look at the new files, it seems these new Blue screens are a whole other breed the stop codes are both 0xFC:

Code:
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck FC, {fffff88002bb7c60, 800000004407d963, fffff88002bb7a40, 2}

Probably caused by : memory_corruption

Followup: memory_corruption
---------
It is blaming memory corruption as the problem, these type of BSOD are caused by device drivers, so on that note please enable driver verifier and allow it to crash your computer then post back here with the new dumpfiles once it has:

Driver Verifier

Tip: If you can not boot normally once driver verifier is enabled please boot into safe mode by tapping the F8 key before the windows logo appears and then disabling driver verifier from safe mode.
My System SpecsSystem Spec
11 Mar 2013   #15
rundwald

Home Premium 64 bit
 
 

I get confused about driver verifier. How can I ensure that it actually is running or has completed?
Just before the latest incidents I had it going for 24+ hrs with nothing happening.

I am dense ( must be) but am not sure if you want me to do anything with bit enclosed in code.
My System SpecsSystem Spec
11 Mar 2013   #16
Dsprague

Microsoft Community Contributor Award Recipient

Windows 7 enterprise 64 bit, Windows 7 Pro 64 bit ,Windows 8 64bit
 
 

If the problem is infact caused by a Driver, then Driver verifier will nine times out of ten cause the computer to BSOD, If it is not causing a BSOD then it is likely a hardware problem, however this particular BSOD (atleast according to its documentation) is caused by Driver problems.
My System SpecsSystem Spec
11 Mar 2013   #17
rundwald

Home Premium 64 bit
 
 

I'll have another go with it to see if it reveals any more other than what I put in so far.
Trouble seems to be pin pointing the driver at fault.
My System SpecsSystem Spec
12 Mar 2013   #18
Britton30
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 

driver verifier runs until you stop it. The memory corruption could be any memory in the machine, RAM, GPU, or CPU cache.
If you haven't, do this.


RAM (memory):
This will require memtest on a bootable CD or USB stick.
RAM - Test with Memtest86+
My System SpecsSystem Spec
12 Mar 2013   #19
rundwald

Home Premium 64 bit
 
 

Loaded Verifier this morning, so will now wait and see. Used Memtest quite recently, whilst the earlier problems mentioned in the thread were on go. However will use it again idc.

Found something a little strange whilst looking for unwanted program folders. I have two of Nvidia Corporation.
The onw that has earlier dated contents has fewer folders than the later, but all the earlier dated folder's contemts are in the later. Why that is I don't understand, but might it be a possible cause of some of my troubles?
My System SpecsSystem Spec
12 Mar 2013   #20
Dsprague

Microsoft Community Contributor Award Recipient

Windows 7 enterprise 64 bit, Windows 7 Pro 64 bit ,Windows 8 64bit
 
 

It may be contributing to the problem, it is likely that when updating your Nvidia driver(s) the old one(s) was/were not uninstalled prior to installing the new one(s) have a look at this tutorial you may want to think about uninstalling your Nvidia diver(s) then running through this tutorial before installing the latest available version(s):

Drivers - Clean Left over Files after Uninstalling
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 Thought BSODs had been done in, but NO!




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